US5563618A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Portable communication device
Assignee: Fujitsu Ltd
•
Filing: 1994-07-22
•
Granted: 1996-10-08
•
Expires: 2014-07-22
Abstract
Abstract A portable communication device which has a horn antenna and a transmitter-receiver and in which the horn antenna can readily be attached to and detached from the transmitter-receiver in a short time. In this portable communication device, a flange on the horn antenna side is connected to a flange on the transmitter-receiver side with four clasps etc. The four clasps etc. are arranged at equal intervals around the outer periphery of the interface of a connecting portion. The clasp comprises a fixing hook portion and a pushing-down portion. The fixed hook portion and the pushing-down portion are fixed to the flanges on the transmitter-receiver side and on the horn antenna side, respectively. The clasps etc. can be operated very easily with a simple motion. Therefore, the horn antenna can be attached to and detached from the transmitter-receiver in a short time without a tool. Also, this attaching/detaching operation can reliably be performed in the dark without lighting.
Inventors
- 👤 Masahiro Tamura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 16:04
CPC Classifications
H; H01; H01Q; H01Q23/00; H01Q1/00; H01Q1/08; H01Q1/088; H01Q1/12; H01Q1/22; H01Q1/24; H01Q1/247; H01Q13/00; H01Q13/02; H01Q13/0208; H01Q13/0225
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
58 words
A portable communication device having a horn antenna and a transmitter-receiver, comprising; a connecting portion provided between said horn antenna and said transmitter-receiver; and simple-motion attaching/detaching means which is provided at said connecting portion and attaches and detaches said horn antenna to and from said transmitter-receiver with a simple motion, wherein said simple-motion attaching/detaching means includes a clasp.
Claim 2
Dependent Claim
58 words
A portable communication device having a horn antenna and a transmitter-receiver, comprising; a connecting portion provided between said horn antenna and said transmitter-receiver; and simple-motion attaching/detaching means which is provided at said connecting portion and attaches and detaches said horn antenna to and from said transmitter-receiver with a simple motion, wherein said simple-motion attaching/detaching means includes a clasp.
Claim 3
Dependent Claim
115 words
A portable communication device having a horn antenna and a transmitter-receiver, comprising; a connecting portion provided between said horn antenna and said transmitter-receiver; and simple-motion attaching/detaching means which is provided at said connecting portion and attaches and detaches said horn antenna to and from said transmitter-receiver with a simple motion, wherein a light transmitting portion is provided on one side of said connecting portion, either the side of said horn antenna or the side of said transmitter-receiver, and a light receiving portion is provided on the other side so that said horn antenna is aligned with said transmitter-receiver by detecting the quantity of light coming from said light transmitting portion to said light receiving portion.
Claim 4
Dependent Claim
115 words
A portable communication device having a horn antenna and a transmitter-receiver, comprising; a connecting portion provided between said horn antenna and said transmitter-receiver; and simple-motion attaching/detaching means which is provided at said connecting portion and attaches and detaches said horn antenna to and from said transmitter-receiver with a simple motion, wherein a light transmitting portion is provided on one side of said connecting portion, either the side of said horn antenna or the side of said transmitter-receiver, and a light receiving portion is provided on the other side so that said horn antenna is aligned with said transmitter-receiver by detecting the quantity of light coming from said light transmitting portion to said light receiving portion.
Claim 5
Dependent Claim
112 words
A portable communication device having a horn antenna and a transmitter-receiver, comprising; a connecting portion provided between said horn antenna and said transmitter-receiver; and simple-motion attaching/detaching means which is provided at said connecting portion and attaches and detaches said horn antenna to and from said transmitter-receiver with a simple motion, wherein a solar battery is inserted into the entirety of one cross section of a waveguide provided on the side of said connecting portion of said transmitter-receiver so that said horn antenna is aligned with said transmitter-receiver by detecting a current generated in said solar battery due to light coming from the tip end of said horn antenna to said solar battery.
Claim 6
Dependent Claim
112 words
A portable communication device having a horn antenna and a transmitter-receiver, comprising; a connecting portion provided between said horn antenna and said transmitter-receiver; and simple-motion attaching/detaching means which is provided at said connecting portion and attaches and detaches said horn antenna to and from said transmitter-receiver with a simple motion, wherein a solar battery is inserted into the entirety of one cross section of a waveguide provided on the side of said connecting portion of said transmitter-receiver so that said horn antenna is aligned with said transmitter-receiver by detecting a current generated in said solar battery due to light coming from the tip end of said horn antenna to said solar battery.
Claim 7
Dependent Claim
60 words
A portable communication device having a horn antenna and a transmitter-receiver, comprising; a connecting portion provided between said horn antenna and said transmitter-receiver; and simple-motion attaching/detaching means which is provided at said connecting portion and attaches and detaches said horn antenna to and from said transmitter-receiver with a simple motion, wherein said simple-motion attaching/detaching means includes a plurality of clasps.
Claim 8
Dependent Claim
60 words
A portable communication device having a horn antenna and a transmitter-receiver, comprising; a connecting portion provided between said horn antenna and said transmitter-receiver; and simple-motion attaching/detaching means which is provided at said connecting portion and attaches and detaches said horn antenna to and from said transmitter-receiver with a simple motion, wherein said simple-motion attaching/detaching means includes a plurality of clasps.
Claim 9
Dependent Claim
26 words
A portable communication device according to claim 4, wherein said clasps are arranged at equal intervals around a periphery of an interface of the connecting portion.
Claim 10
Dependent Claim
45 words
A portable communication device according to claim 4, wherein said clasps each include a fixing hook portion fixed with respect to the transmitter-receiver and a pushing-down portion which is engageable with said fixing hook portion and which is fixed with respect to the horn antenna.
Claim 11
Dependent Claim
70 words
A portable communication device having a horn antenna and a transmitter-receiver, comprising; a connecting portion provided between said horn antenna and said transmitter-receiver; and simple-motion attaching/detaching means which is provided at said connecting portion and attaches and detaches said horn antenna to and from said transmitter-receiver with a simple motion, wherein a gap is provided between an interface portion of the horn antenna and an interface portion of the transmitter-receiver.
Claim 12
Dependent Claim
70 words
A portable communication device having a horn antenna and a transmitter-receiver, comprising; a connecting portion provided between said horn antenna and said transmitter-receiver; and simple-motion attaching/detaching means which is provided at said connecting portion and attaches and detaches said horn antenna to and from said transmitter-receiver with a simple motion, wherein a gap is provided between an interface portion of the horn antenna and an interface portion of the transmitter-receiver.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1999-10-08 | 2000-04-08 | 2000-10-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-10-08 | 2004-04-08 | 2004-10-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-10-08 | 2008-04-08 | 2008-10-08 | $7700.00 | Window Closed / Lapsed |